Home / 5,423.49-7,484.79-3,065.64

Finding the Fourth Proportional to 5,423.49, 7,484.79 and 3,065.64

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Solution

The fourth proportional to 5,423.49, 7,484.79 and 3,065.64 is: 4,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.49 : 7,484.79 = 3,065.64 : x
  2. Step 2: Convert to fraction form
    5,423.49/7,484.79 = 3,065.64/x
  3. Step 3: Cross multiply
    5,423.49x = 7,484.79 × 3,065.64
  4. Step 4: Simplify right side
    5,423.49x = 22,945,671.62
  5. Step 5: Solve for x
    x = 22,945,671.62/5,423.49
  6. Step 6: Final answer
    x = 4,230.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.